Mechanical movement.



UNITED singes JGHN QUIST AND CHARLES QUIST, OF MYSTIC, IOWA, ASSIGNORS OF PATENTA OFFIOF.

ONE-HALF TO O. P. FEARSON AND O. L. BERRY, OF MYSTIO, IOWA.

MECHANICAL MOVEMENT.

No. esmas.

Specification of Letters'atent.

Patented July 1 0, 1 906.

Application filed December 18, 1905. Serial No. 292,310.

' residing at Mystic, in the county of A panoose and State o Iowa, have invente certain new and usefu Improvements in Mechanical Movements; and We do declare the folloivin to be a full, clear, and exact description e the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in mechenicai movements.

The obiect of the invention is to provide a mechanical movement whereby a rotary motien may be transformed to an oscillatory motion.

A. further object is to rovide. means Whereby all dead-centers will e overcome.

With the above and other objects in view the invention consists of certain novel features of construction, combination, and arl ran ement of parts, as will be hereinafter desocket 5. 0n the outer en serIi cd1 and ciaimed. dr

n t e accompanyin swings, Fi rre 1 is a side elevation of the invention. 2 is a top plan view showi in full lines one position of the parts and in dotted lines another position of the same. Fig. 3 is a sectional view on the line 3 3 of 1. 4 is a detail perspective view of t e oscillatory shaft and -cam g and Fig; 5 is a similar view of the operating-fork and the end ofthe drive-shaft to which the same is attached.

Referring to the drawings more particularly, 1 denotes a main drive-shaft, which is journaled in a suitable bearin -bracket 2 and 1s here shown as being provi ed on one end with an operating ily-wheel 3. On the o posite end o the shaft 1 is formed a head 4, av-

a transversely-disposed socket 5. OnY

one side of the head 4 is formed a recess 6. ivotaly mounted on the head 4 is en opersting-fork 7, said fork being adapted to turn in the recess 6 and has formed on one end a reduced shank 8, seated or 'onrnaled in the of the bars or nlgers of the fork 7 are journaled antifrictionro ers 9.

Mounted in suitable bearings on the bracket 2 et ht angles to the drive-shaft 1 is a driven sha 10, which has a double cam 12, said cam being secured eccentrically to the shaft 10, as shown. The cam 12 may be formed in any suitable marmer, but ishere shown and is referably constructed rom an endless metailic strip 13, bent npon itself midway its ends to form s per and lower loop-shaped members i4, t e stripi being then bent to bring the loop-shaped members tion. If desired, the outer edges of the bent stri 13 may be secured together by a central y-disposed plate 15.

'In operation the fork 7 is arranged so that the bars or fingers of the same Will engage each side of the stri whereby when said drive-shaft is revolvedj the Jfork will be turned, which will cause the cam 12 to swing first in one direction, then in the other, thereby producng an oscillatory movement with the driven shaft 10. By connectin the cam 12 eccentricaily to the shaft 10 an by mounting the fork 7 in the recess 6 in the head e of the drive-shaft said parts Wili be prevented from hangin on a dead-center.

While we lave shown and described the shaft. 1G as driven by a crank-handle on the iiy-Wheel 3, it is obvious that a pulley or other suitable driving mechanism may be arranged on said shaft.

A mechanical movement such as herein shown and described will be found to be of greet service in connection with certain classes of machinery-such as churns, Washing-machines, @cc-in which e rotary movement is te be transformed te an oscillatory movement.

From the fore oing description, taken in Vemanention with le accompanying drawings, the construction and operation of the invention will be readily understood without requir a more extended eX lanation.

Various changes in the crm, roportion, and the minor details of construction may be resorted to Without departing from the prin ciple or sacriicing an of the advantages of this invention as de ed by the appended claims.

Having thus described our invention, what We claim as new, and desire to secure by Letters Patent, is*

1. In a mechanical movement, the combination with a drive-shaft, of an oferatingfork pivotaly mounted on one end t ereof, a

driven shaft, e double cam arranged in said shaft and adapted to be engaged y the piv- Y14 intoV alinement one above the other, as shown, thus forming a double-cam construc- IOO oted fork on said drive-shaft, whereby when the latter is revolved said driven shaft will be oseillated, substantial@7 as described.

2. In a mechanical movement, the combination with a drive-shaft7 of an o eratingfork pivotally mounted on one endp thereof, and having antifriction-rollers journaled on its bars, a driven shaft, a double cam eccentrically mounted in said driven shaft in position to be engaged by the antiriction-rollers on said fork whereby when Said drive-shaft is revolved said driven shaft will be oscillated, substantially as described.

3. In a mechanical movementJ the combination with a suitably-mounted drive-shaft having on one end a drive-wheel and on its opposlte end an enlarged recessed head, of a driven shaft, a double-loop cam arranged eccentrically in said shaft, said cam being formed of an endless flat metallic strip bent to form upper and lower inwardly-projecting loops disosed one above the other, an operating-for pivotally mounted on said head to turn in said recess, antiriction-rollers arranged on said fork to enga e the opposite sides of the strip forming said ouble-loop cam whereby when said drive-shaft is revolved said driven shaft will be osoillated7 substantially as described.

In testimony whereof we have hereunto set our hands 1n presence of two subscribing witnesses.

JOHN QUIST. CHARLES QUIST. Wvitnesses F` DELAY,

R. J. OUGHTON. 

